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A non-uniform equivalent cable model of membrane voltage changes in branching neuronal trees with active ion channels has been developed. A general branching condition is formulated, extending Rall's 3/2 power rule for passive dendritic trees so that non-uniform cable segments can be treated. The theoretical results support the use of the dendritic profile… (More)

This paper presents a method to mathematically analyze the nerve impulse propagation in nonuniform axons. Starting from the general, nonlinear one-dimensional cable equations with spatially varying cable diameter, the problem is shown to be eqiuvalent (under some variable transformations) to the case of uniform axons. Characterized by the same normal form,… (More)

A non-uniform equivalent cable model of membrane voltage changes in branching active dendritic trees has been developed. A general branching condition is formulated, extending Rall's 3/2 power rule for passive trees.